HowTo: Set the value of the solar constant

The solar constant

The solar constant is the (total) solar radiation (W/m2) received at one astronomical unit (au) from the Sun

Changing/setting the solar constant

This is an input that can be changed by setting the appropriate flag solaire (French for "solar") in config.def, e.g.:

solaire=1366.0896

Important: This will always be taken into account if running without the RRTM radiative transfert scheme, i.e. with

iflag_rrtm=0

If using RRTM (i.e. iflag_rrtm=1) then the solaire parameter is ignored as the solar constant is read from a specific input file (SOLARVOLCANOES.txt ?) unless

ok_suntime_rrtm=n

14/12/2021